Chlorine has seven electrons in its valence shell. it accepts an electron to complete its octet and becomes a chlorine ion ( what is the nature of this chlorine ion? a. cation b. anion c. metal ion

The peak wavelength for the blackbody curve of a star is in the uv range. assuming the radiation from this star can reach earth, would you be able to see it?

How do you know when a chemical reaction has occurred

The size (radius) of an oxygen molecule is about 2.0 ×10−10m. make a rough estimate of the pressure at which the finite volume of the molecules should cause noticeable deviations from ideal-gas behavior at ordinary temperatures (t= 300k ). assume that deviatons would be noticeable when volume of the gas per molecule equals the volume of the molecule itself.